US2570829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat sealable vulcanized film and method of making same
Assignee: Goodrich Corp
•
Filing: 1950-01-19
•
Granted: 1951-10-09
•
Expires: 1970-01-19
Abstract
No abstract record available.
Inventors
- 👤 Edwin M Maxey
- 👤 Carroll P Krupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:25
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A UNITARY UNSUPPORTED HEAT-SEALABLE FILM COMPRISING A RUBBERY POLYMER OF AN OPEN CHAIN CONJUGATED DIOLEFIN WITH AN ALPHA-METHYLENE NITRILE, SAID POLYMER BEING VULCANIZED IN ONE STRATUM OF SAID FILM AND BEING UNVULCANIZED IN A STRATUM AT LEAST ONE FACE OF SAID FILM, SAID UNVULCANIZED STRATUM COMPRISING, IN HOMOGENEOUS ADMIXTURE WITH SAID RUBBERY POLYMER, A POLYMER OF A MONOMERIC MATERIAL COMPRISING
Claim 2
Dependent Claim
60 words
A UNITARY UNSUPPORTED HEAT-SEALABLE FILM COMPRISING A RUBBERY POLYMER OF AN OPEN CHAIN CONJUGATED DIOLEFIN WITH AN ALPHA-METHYLENE NITRILE, SAID POLYMER BEING VULCANIZED IN ONE STRATUM OF SAID FILM AND BEING UNVULCANIZED IN A STRATUM AT LEAST ONE FACE OF SAID FILM, SAID UNVULCANIZED STRATUM COMPRISING, IN HOMOGENEOUS ADMIXTURE WITH SAID RUBBERY POLYMER, A POLYMER OF A MONOMERIC MATERIAL COMPRISING
References Cited (Backward Citations)
US1096112A
Cited
US2234621A
Cited
US2278777A
Cited
US2411116A
Cited
US2323562A
Cited
US2430931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |